Models

Claude Sonnet 4.6

Model id: anthropic/claude-sonnet-4-6

  • Agentic
  • Fast
  • Coding
  • Vision
  • Long context
  • Tools

Anthropic Claude Sonnet 4.6 for everyday reasoning, coding, and agent tool use.

Best for

production apps that need a proven Sonnet balance of speed and quality.

Provider
Anthropic
Context window
1,000,000
Release date
2026-02-01
Reasoning effort
lowmediumhighmaxDefault: high

Pricing

Input
$4.6296 / 1M
Output
$23.1479 / 1M
Cached input
$0.463 / 1M
Cache write
$5.787 / 1M
Cache write (1h)
$9.2591 / 1M

Web search

Per successful search
$0.0154 / search

Billed on top of tokens when the model uses web search.

Amounts in Canadian dollars, converted at the Bank of Canada indicative rate (2026-07-31).

Performance

Milliseconds

Last 7 days

Time to first byte (p95)
946 ms
Output speed (p95)
51.2 tok/s
Samples
34 over 7 days

Measured on real traffic at Pass egress — not a synthetic benchmark.

Activity

Tokens

Top 5 tools · last 7 days

Tool activity appears only when at least 2 organizations have used this model recently.

Availability

Availability (%)

Last 7 days

Operational probes
99.85% over 7 days
Samples
8,615

View service status

Quick start

Call the API with a tonia_ key and the exact model id below.

curl

curl https://pass.tonia.ca:8443/v1/chat/completions \
  -H "Authorization: Bearer $TONIA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4-6",
    "messages": [{"role":"user","content":"Bonjour"}]
  }'

Python (OpenAI SDK)

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://pass.tonia.ca:8443/v1",
    api_key=os.environ["TONIA_API_KEY"],
)
response = client.chat.completions.create(
    model="anthropic/claude-sonnet-4-6",
    messages=[{"role": "user", "content": "Bonjour"}],
)

TypeScript (OpenAI SDK)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://pass.tonia.ca:8443/v1",
  apiKey: process.env.TONIA_API_KEY,
});

const response = await client.chat.completions.create({
  model: "anthropic/claude-sonnet-4-6",
  messages: [{ role: "user", content: "Bonjour" }],
});

With the Anthropic API (/v1/messages), Claude models are used without the anthropic/ prefix.

Create a key in the portal